Compound for roofing and protecting metals



a deiereuce w L "tit UNIT D STATES PATENT OFFICE.

FREDERIOK H. sNY ER, O JERsEY CITY, N W JERsEY, AssieNOR' OF ONE- THIRD TO GEORGE w. RICHARDSON AND MARTIN LUSCOMB, BOTH OF BOSTON, MASSACHUSETTS. a

COMPOUND FOR [ROOFING ANDPROTECCT'ING' METALS.

SPECIFICATION forming part of Letters Patent No. 357,104, dated'P ebruary 1, 1887, Application filed October 22, 1883. Renewed May 15, 1385. Serial No. 165,617. (No specimens.)

To all whom it may concern.- occur to any one familiar with its characteris- Be it known that I, FREDERIoK H. SNYDER, tics and qualities. The material has so little a citizen of the U nited States, residing at J er chemical affinity for other substances that it sey City, in the county of Hudson and State cannot be easily affected when placed in con- 35 p 5 of New Jersey, have invented certain new and tact with chemicals or liquids which often .de- I useful Improvements in Compounds for Roofstroy other forms of v paint. For this reason ing and Protecting Metals, of which the folit'is valuable for painting iron or metals-urlowing is a specification. faces, as the oxidatives of the metal will'not My invention relates to the use of what is l injure it. For coating thebottgp s of 1 sels .t o to commonly known as gas-carbon--that form it witl be found valuable. Its refractory prop= of carbon found adherent to the interior of erties make it valuable for painting buildings retorts used for the manufacture of illuminat- 0r roofs that are liable to lie-exposed to fires, ing-gas-for the manufacture of paint for varior for smoke-stacks and similar heated surous purposes. p faces, where the action of the heat is apt to 45 15 In preparing this material I first pulverize destroy the usual forms of paint. Its hardthe crude gas-carbon very finely. If a fine ness makes it valuable to use in the place of grade of paint is desired, or a quality posblack lead, lamp-black, &c., asit will readily sessing great refractory properties, I prefer to mix with other paints. u use gas-carbon that has been treated by a 'pro- Having thus described my invention, what 50 g go cess described and shown in my application I claim as new, and desire to secure by Letters for Letters Patent of the United States allowed Patent, isp v the 15th of. June, 1883, Serial No. 95,045,; but In the manufacture of compounds for roofcoarser grades that can be used for many puring and protecting metals and other substances, poses may be made by grinding or pulveriz- 1 acompositionof which gas-carbon isaconstitu- 55 25 ing the crude carbon as taken from the gas ent element, substantially as described. retorts, without separating or purifying the In testimony whereof I aflix my signature in r same. In using gas-carbon it may be mixed presence of two witnesses. with oil or other substances in the same man- FREDERICK H. SNYDER. ner as any of the ordinary substances used in Witnesses: 7 3o compounding paints. The merits of a paint GEORGE W. JOIINES,

of which g g-cannon is the basis will re 1 y D. W. BLIss.

,1 ear-194. li l tloe I 

